Typewriting and accounting machine



O. J. SUNDSTRAND' TYPEWRITING AND ACCOUNTING MACHINE Feb. 27, 1945.

19 Sheets-Sheet 1 Filed June 29-, 1939 INVENTOR OSCAR J .SUNDSTRAND W ATTORNEY 19 Sheets-Shet 2 o. J. SUNDSTRAND TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1959 Feb. 27; 1945;

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O. J. SUNDSTRAND TYPEWRITING AND ACCOUNTING MACHINE 19 Shets-Sheet 6 Filed June 29, 1939 I I F! INVENTOR OSCAR J SUNDSTRAND ATTORNEY Feb.'27, 1945. SUNDSTRAND v v 2,370,505 I TYPEWRITING AN-D ACCOUNTING MACHINE Filed June 29, 1939 19 Sheets-Sh eet 7 INVENTOR 492 I C O-SCARJ-SUNDSTRAND ATTORNEY 1945- o. J. SUNDSTRAND TYPEWRITING AND ACCOUNTING MACHINE 19 Sheets-Sheet 8 Filed June 29, 1939 oscAk SUNDSTRAND ATTORNEY TYPEWRITING AND ACCOUNTING MACHINE Filed June 29,1939 l9 Sheets-Sheet 9 mm; JJH' IZZ my 27 m i'-. ATTORNEY 0, J. SUNDSTRAND TYPEWRITING AND ACCOUNTING MACHINE Fgb. 27, 1945-.

Filed June '29, 1959 19 Sheets-Sheet 1O NVENTOR OSCARJJUVDSTRAND ATTORNEY 1945- o. J'. SUNDSTRAND 2,370,

TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 l9 Sheets-Sheet 11 ATTORNEY b- 27, 1945- d. J. SUNDSTRAND 2,370,505

TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 19 Sheets-Sheet 12 Feb. 27, 1945. Q D RAND 2,370,505

TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 19 Sheets-Sheet l3 i I l W w W 260 om yiflimw 4, BYv I ATTORNEY A Feb. 27, 1945. Q U R D. I 2,370,505

TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 l9 Sheets-Sheet l4 INVENTOR OSCAR J. SUNDSTRAND BY I ATTORNEY Feb. 27, 1945. Q SUNDSTRAND v 2,370,505

' TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 19 Sheets-SheetlS F Ma INVENTOR OSCAR J. su /osmmo ATT ORNEY Feb. 27, 1945. Q UN TRAND 2,370,505

TYPEWRITING AND ACCOUNTING MACHINE Fi led June 29, 1939 19 Sheets-Sheet 16 8/6 75/ 2% l ig. 57

. m I L 1 INVENTOR v 54 OSCAR J. JU/VDSTRAND Feb. 27, 1945-" o. .1, S UNDSTRAND 2,370,505

TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1939 l9 Sheets-Sheet l8 INVENTOR OSCAR J. SUNDSTRAND BY M ATTORNEY 1945- o. J. SUNDSTRAND 2,370,

TYIPEWRITING AND ACCOUNTING MACHINE Filed Juxie 29, 1939 19 Sheets-Sheet 19 @QQQMNQ f if INVENTOR OSCAR .1. .SUNDSTRAND Patented Feb. 1945 2,37 0,505

7 2,370,505 7 I TYPEWBITING AND ACCOUNTING MACHINE I V Oscar J. Sundstrand, Hartford, Conn, assignor to Underwood Elliott Fhher Company, New York, N. Y.. a corporation of Delaware Application June 29, 1939, Serial No. 281,772

44 Claims.

This invention relates to typewriting machines, to accounting machines and tocombined type- .writing and accounting machines, and more particularly to machines of the combined typewriting and accounting machine type in which numbers bar to carry the actuators into connection with are set up, denomination by denomination, in the t power mechanism,

registers or totalizers 81191 are printed; digitby Another object of the invention is to provide digit, under control of the numeral keys of the various mechanisms for preventing misoperation typewriting mechanism of the parts under various conditions.

In general, the objects of the invention are to with this object in View; the machine is improve the construction and mode operation 'vided with locking devices for locking the mechapf machines of the above type and produce nisms which normally are operated and controlled i g ag?" by the letter and numeral keys to connect the n sm an e 0 er me re opera in a certain and reliable manner by power controlled type bar mechanism and the dlfierentml mecha by keys which may be actuated by alight and easy touch to set the type bar operating mechanism and the totalizer operating mechanism in operation and in which errors in the entering of the numbers in the totalizers and the typing of the numbers or letters are reduced to a One of the particular objects of the invention is to produce a machine of the above type having novel and improved mechanism for operating the totalizers difierentially by power under control of the numeral keys to enter the numbers in the totalizers.

With this object in view, the invention comprises a-difierential operating mechanism for the totalizers embodying various novel and improved features, constructions and combinations of parts hereinafter described and particularly pointed out in the claims.

In the present form of the invention, the totalizer operating mechanism comprises a series of actuators which are selectively connected with the power drive by mechanism controlled by the numeral keys to move the actuators in one direction. When the actuator have been moved in said direction to the positions required for their subsequent action, they are returned in the opposite directions preferably by spring actuated mechanisms. During their return movement these 'actuators are connected with the totalizers for differential intervals determined by suitable mechanism to cause the actuators to operate the totalizers toenter the desired digits therein. In the machine illustrated, the same mechanism comprises a series of fixed differential cams. The actuators are preferably actuated to connect the same with the power drive by power-actuated mechanisms. In the present machine, upon the depression of the keys, the type bar mechanisms are selectively connected with the power means to drive the types into typing contact with the work sheet and the differential actuators for the totalizers are arranged to be moved respectively by the type bar mechanisms during th latter part of the operating strokes of the several type machine of the Elliott Fisher type, certain features of the invention are not limited to combined machines and certain features are not limited to machines of said type. It is, therefore, to be understood that, except as defined in the claims,

the invention is not limited to any particular machine or type of machine.

The various features of the invention willbe clearly understood from the accompanying drawings illustrating the invention in its preferred form and the following detailed description of the constructions thereinshown.

rn the drawings:

Figure 1 is a perspective view illustrating a machine embodying the invention, v

Figure 2 is a view in rear elevation illustrating the head or type carriage of the machine,

Figure 3 is a view in vertical section of the machine and illustrating particularly the type bar operating mechanism and the mechanism for operating the registers or totalizers to enter the numerals from 3 to 9, inclusive,

Figure 4 is a detail view in rear elevation illustrating a reverse gearing forming part of the mechanism for driving a column totalizer,

Figure 5 is a detail view in vertical section illzziestrating the mechanism for operating the totalure 6 is a view similar to Figure 5 illustrating certain of the parts in different positions,

F g e 7 is a detail perspective view illustrating 

